Skip to content
🔌

WebSocket Tester

Developer

Connect to a WebSocket endpoint, send text and inspect sent, received and connection events.

0
0
WebSocket URL
Disconnected
Message
Message log

No activity yet. Connect and send a message to see the log.

Connect to a WebSocket endpoint, send text and inspect sent, received and connection events. Server availability and browser policy affect connections.

See more about the WebSocket Tester

Binary messages are labelled, not decoded; logs and message length are bounded.

Examples

Worked example

Send a short marker to the example WSS echo endpoint and compare the returned text.

Server availability and browser policy affect connections. Binary messages are labelled, not decoded; logs and message length are bounded.

Key features

  • Connect to a WebSocket endpoint, send text and inspect sent, received and connection events.

Related Blog Posts

Quick answers for WebSocket Tester

What does the WebSocket Tester do?
Connect to a WebSocket endpoint, send text and inspect sent, received and connection events. The WebSocket Tester is one of 900+ free developer tools on Toolblip - all open to use without a signup.
How do I use the WebSocket Tester?
Open the WebSocket Tester on this page, paste or upload your input, and the result updates as you type. Use the copy button to grab the output, or adjust options to tune the result. Nothing you enter leaves your browser.
Is the WebSocket Tester free to use?
Yes. The WebSocket Tester is a free online tool on Toolblip - no signup, no account, no hidden usage limits. It runs in your browser and works on desktop and mobile.
Is the WebSocket Tester safe and private?
Yes. The WebSocket Tester processes your data entirely client-side, so nothing you paste is uploaded or stored on any server. It's safe to use with internal snippets, private keys for debugging, or any other sensitive content you'd rather not send to a remote service.
What kind of output does the WebSocket Tester produce?
The WebSocket Tester produces clean, formatted output that you can copy or download with a single click. The output is tailored to the tool's purpose (formatted code, converted data, transformed text, or processed media) and is ready for immediate use in your project or workflow.
Does the WebSocket Tester work on mobile devices?
Yes. The WebSocket Tester is designed to work on any device with a modern browser, including phones and tablets. The interface adapts to smaller screens, and the core functionality (paste input, transform, copy output) works the same way regardless of your device.
Do I need to install anything to use the WebSocket Tester?
No. The WebSocket Tester runs entirely in your browser - no downloads, no accounts, no API keys. Paste your input, get the output, copy it back into your editor.
Can the WebSocket Tester handle large input files or long text?
Yes. The WebSocket Tester processes everything locally in your browser, so the only limit is your device's available memory. There are no arbitrary caps on input size, character count, or processing time that you would typically encounter with server-based tools.
Can I use the WebSocket Tester offline?
Once the page has loaded, the WebSocket Tester continues to work without an internet connection. Bookmark this page and return to it anytime - all logic runs locally.